select animations with a pot

// select animations with a pot (Code snipplet)


    #define NUMVIZ 7    // number of selectable options (0..6)
    #define POT_INPUT   A3

int readpot()
{
    return analogRead(POT_INPUT);
}

in loop:

        int potval = readpot();
        byte vizval = potval / (1024/NUMVIZ); // get a viz number based on the pot position
//  Serial.println (vizval);
        bool newviz = 0;
        if (vizval != lastvizval) newviz = 1; // if it's changed, trigger the initialisations
        switch (vizval)
        {
            case 0:
                if (newviz) fill_solid( &(leds[0]), NUM_LEDS, CRGB( 0,0,0) );      // switch strip to black
                // animation here
                break;
            case 1:
                if (newviz) fill_solid( &(leds[0]), NUM_LEDS, CRGB( 0,0,0) );
                // animation here
                break;
            case 2:
                if (newviz) fill_solid( &(leds[0]), NUM_LEDS, CRGB( 0,0,0) );
                // animation here
                break;
            case 3:
                if (newviz) fill_solid( &(leds[0]), NUM_LEDS, CRGB( 0,0,0) );
                // animation here
                break;
            case 4:
                if (newviz) fill_solid( &(leds[0]), NUM_LEDS, CRGB( 0,0,0) );
                // animation here
                break;
            case 5:
                if (newviz) initblobs();
                // animation here
                break;
            case 6:
                if (newviz) fill_solid( &(leds[0]), NUM_LEDS, CRGB( 0,0,0) );
                // animation here
                break;

        }
        lastvizval = vizval;
        newviz = 0;
        FastLED.show(); // display this frame